Development of a magnetic sensor for detection of moderate carburization damages in heat-resistant HP-Nb tubes of steam reforming furnaces

Although carburization is not a typical occurrence in steam reforming furnaces, this localized damage can occur and its detection is an important issue. A magnetic sensor based in the magnetic flux density variation has been proposed for the carburization detection in samples coming from steam refor...

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Bibliographic Details
Published in:	Journal of materials research and technology Vol. 7; no. 3; pp. 371 - 375
Main Authors:	Lopez, Juan E.C., Arenas, Mónica P., Pacheco, Clara J., Queiroz, Fábio S., Eckstein, Carlos B., Nogueira, Laudemiro, Almeida, Luiz H. de, Rebello, João M.A., Pereira, Gabriela R.
Format:	Journal Article
Language:	English
Published:	Elsevier Editora Ltda 01-07-2018 Elsevier
Subjects:	Carburization FEM simulation Magnetic sensor Steam Reformer tubes Magnetic sensor Steam Reformer tubes FEM simulation Carburization
Online Access:	Get full text
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Summary:	Although carburization is not a typical occurrence in steam reforming furnaces, this localized damage can occur and its detection is an important issue. A magnetic sensor based in the magnetic flux density variation has been proposed for the carburization detection in samples coming from steam reformer tubes. A three-dimensional model, by finite-element method (FEM), supported the optimization and development of a magnetic sensor for the detection of carburized samples. The experimental results indicated that the developed sensor, with high sensitivity, allowed to detect regions with moderate carburization damages.
ISSN:	2238-7854
DOI:	10.1016/j.jmrt.2018.06.007